<thy-header thySize="sm">
  <ng-template #headerContent>
    <thy-nav thyType="thirdly" thyHorizontal="left">
      <a thyNavLink [routerLink]="['./view-1']" routerLinkActive="active">View1</a>
      <a thyNavLink [routerLink]="['./view-2']" routerLinkActive="active">View2</a>
      <a thyNavLink [routerLink]="['./view-3']" routerLinkActive="active">View3</a>
    </thy-nav>
  </ng-template>
</thy-header>
<router-outlet></router-outlet>
